int draw_infos(t_gfx *s)
{
set_infos_bg(s);
if (s->bSelect.x != -1)
{
if (set_gui_infos(s) == EXIT_FAILURE)
return (EXIT_FAILURE);
if (fill_infos(s) == EXIT_FAILURE)
return (EXIT_FAILURE);
}
return (EXIT_SUCCESS);
}
int main(int argc, char* argv[])
{
int c, ret = -1;
char* log_file = NULL;
char* cpu_mask = NULL;
int rc, mode = 0, tid;
while ((c = getopt(argc, argv, "c:l:m:")) != -1) {
switch(c) {
case 'l' :
log_file = strdup(optarg);
break;
case 'c' :
cpu_mask = strdup(optarg);
break;
case 'm' :
if (strcmp(optarg, "1") == 0)
mode = 1;
else if (strcmp(optarg, "2") == 0)
mode = 2;
else if (strcmp(optarg, "3") == 0)
mode = 3;
break;
default :
fprintf(stderr, "unknown option %c\n", c);
exit(-1);
}
}
/*
* checking an dealing with input parameters
*/
if (log_file) {
if (!(f = fopen(log_file, "w"))) {
fprintf(stderr, "cannot open file\n");
goto out;
}
}
else {
f = stdout;
}
if (!mode) {
ERROR("must specify mode\n");
goto out;
}
if (!cpu_mask) {
ERROR("need to specify CPU type\n");
goto out;
}
/*
* setting up system stuff
*/
if ((pid_max = get_pid_max()) < 0) {
ERROR("unable to get pid_max\n");
goto out;
}
PRINTF("pid_max is %d\n", pid_max);
signal(SIGINT, sig_int_cb);
if ((nl_sd = create_nl_socket(NETLINK_GENERIC)) < 0) {
ERROR("error creating Netlink socket\n");
goto out;
}
/*
* register taskstats notifier
*/
fam_id = __get_family_id(nl_sd);
if (!fam_id) {
ERROR("Error getting family id, errno %d\n", errno);
goto out;
}
my_pid = getpid();
if ((rc = send_cmd(TASKSTATS_CMD_GET,
TASKSTATS_CMD_ATTR_REGISTER_CPUMASK, cpu_mask, strlen(cpu_mask))) < 0) {
ERROR("error sending register cpumask\n");
goto out;
}
/*
* now for the main loop
* modes of operations
* i) get all process stats and print
* ii) wait until receive signal (be polling for dead process in meantime)
* then get all process stats
* iii) get all process stats, then wait for signal and print diff
*/
if (mode == 1) {
fill_infos(infos1);
for (tid = 0; tid < pid_max; tid++) {
if (!infos1[tid])
continue;
print_taskstats(&infos1[tid]->t);
}
}
else if (mode == 2) {
PRINTF("waiting for signal\n");
while (!sig_int)
sleep(1);
fill_infos(infos1);
for (tid = 0; tid < pid_max; tid++) {
if (!infos1[tid])
continue;
print_taskstats(&infos1[tid]->t);
}
}
else if (mode == 3) {
struct timeval start_since_epoch;
struct timespec start, end;
static struct taskstats ts_tot = {0};
if (fill_infos(infos1) < 0) {
ERROR("error before start\n");
goto out;
}
if (clock_gettime(CLOCK_MONOTONIC, &start) < 0) {
ERROR("unable to get start time\n");
goto out;
}
if (gettimeofday(&start_since_epoch, NULL)) {
ERROR("unable to get start time since epoch\n");
goto out;
}
PRINTF("waiting for signal\n");
while (!sig_int) {
ret = recv_taskstats(MSG_DONTWAIT, infos2);
if (ret == 0 || ret == -EAGAIN) {
usleep(10000);
continue;
}
ERROR("unable to recv taskstats, %d\n", ret);
goto out;
}
if (fill_infos(infos2) < 0) {
ERROR("error at end\n");
goto out;
}
if (clock_gettime(CLOCK_MONOTONIC, &end) < 0) {
ERROR("unable to get end time\n");
goto out;
}
PRINTF("--- task dump start ---\n");
for (tid = 0; tid < pid_max; tid++) {
struct proc_info* p1 = infos1[tid];
struct proc_info* p2 = infos2[tid];
if (!(p1 || p2))
continue;
else if (p1 && p2) {
static struct taskstats ts;
diff_taskstats(&ts, &p2->t, &p1->t);
print_taskstats(&ts);
}
else if (p2) {
print_taskstats(&p2->t);
}
}
PRINTF("--- task dump end ---\n");
PRINTF("Start since epoch (s) %d\n", start_since_epoch.tv_sec);
PRINTF("Elapsed time (ns) %llu\n",
((long long)end.tv_sec - start.tv_sec) * 1000000000LL +
end.tv_nsec - start.tv_nsec);
}
out :
if (f != stdout)
fclose(f);
return ret;
}
